Horological Meandering: Me too , A
I agree with Foversta ,my choice is A , timeless design , orinality of DR . Also, I suggest Speake-Marin tourbillon vintage , I took one.
Independents: speake-Marin Marin 1 ?
As I known it is polished titanium, not coating . It is very good polishing , I only see that level of finishing on De Bethune and PSM Marin 1. IMHO